Deliberate mistake: Near the end of the movie, in the Yankee Stadium scene, Adam Sandler sneaks onto the field. He then assaults a police officer and announcer who try to stop him. Rudolph Giuliani condones, even encourages Sandler's behavior. Giuliani acted entirely out of character, as he has an extensive history of being staunchly anti-petty crime and pro-police officer. (01:27:15)
Continuity mistake: In the Yankee Stadium scene, Adam Sandler has to kiss Marissa Tomei to get her to marry him. At first, she looks like she is a long way away but it takes only seconds for them to be right next to each other. (01:29:35)
Factual error: After the Yankee game when Adam Sandler and Marisa Tomei are going home via the subway, they show Yankee Stadium in the background and they are standing on the platform further away from the stadium. If they live in Brooklyn, they should be on the platform closer to the stadium as that is the one that is south bound towards Manhattan and Brooklyn. The one they are on goes north. Why would they be going north away from home at that hour? (01:30:30)
Revealing mistake: When Jack and Adam are in bed together, after Jack's "flatulent" moment, Adam tries to keep from laughing while answering Jack's question. The blanket covering Adam's face is obviously covering up an hysterical set moment.
Continuity mistake: When Buddy and Dave are on the bridge singing, when Buddy has the papers they are held together with a paper clip. In one shot when Dave has the papers, they are held with a staple.
Continuity mistake: When Dave lets his lawyer hear what went on in the car, things that were said have been shortened and shuffled around.
Continuity mistake: When Dave first meets his 'group', just after Stacy and Gina kiss, one of the group members is shown wearing an Iverson headband. A few seconds later as the camera pans back to him, the headband is backwards.
Continuity mistake: When Adam Sandler is outside on the phone with his lawyer and the NYC is in the background, the boat wake disappears and reappears in the shadow of the bridge.
Continuity mistake: When Dave is assigned his anger ally, Chuck, look at the paper in Chuck's pocket. In the first few close ups, the paper in his pocket that is poking out shows no writing. Then eventually the paper has a symbol on it.
Revealing mistake: When David's car does the little jump while driving to the Yankee's game, you can see that it is a stunt driver driving, not Adam Sandler. This is most obvious when the light hits his face for a second.
Factual error: When Dave is on the plane the flight attendant is talking about "how their country is going through a very difficult time right now" meaning the 9/11 attacks but later on in the movie when Buddy is in the shower and Dave is talking to his lawyer on the phone on the roof in the background you can see the twin towers.
Continuity mistake: Buddy pours cereal in his bowl. When he spells out the word chill, there's not much cereal in the bowl. Much less than he poured in it.
Audio problem: Buddy throws away Dave's CD's, which make a breaking sound. Why? It's not like he threw them from across the room. He simply drops them in the trash can.
Continuity mistake: Dave boards the plane before Buddy but when Dave is being shown his seat, Buddy is already sitting in his.
Factual error: When the young Dave is being embarrassed, his underwear shows the new 'Fruit of the Loom' logo on the waistband. In the late 1970s, children's 'Fruit of The Loom' underwear just had two parallel horizontal lines on the waistband.
Continuity mistake: After Adam Sandler gets the brownies thrown at him by the girl in the red dress, you can see that there are brown spots all over his jacket. When we next see him, (in the scene with Jack Nickolson) there is no sign of there ever being any brownie on him at all.
Answer: It's really not uncommon for movies to remove bits and pieces when broadcast on TV. Movies aren't just cut for content, they're also cut for timing. (Ex. "Shanghai Knights" used to be absolutely butchered when shown on cable - there were entire scenes missing, which created glaring mistakes.) It's also not uncommon for TV versions or foreign releases to change or remove cultural references, or use alternate takes depending on the language used. Depending on where you live, it could very easily just be that the version you're seeing is one of these alternate versions that was then also trimmed down to fit a TV timeblock.
TedStixon